Question

what is the value of x in this triangle?
125°
38°
x°
enter your answer in the box.
x = \square

Explanation:

Step1: Recall triangle angle sum

The sum of angles in a triangle is $180^\circ$.

Step2: Sum known angles

$125^\circ + 38^\circ = 163^\circ$

Step3: Solve for $x$

Subtract the sum from $180^\circ$:
$x = 180^\circ - 163^\circ$

Answer:

$17$